MR Credit 1.1: Building Reuse—Maintain Existing Walls, Floors and Roof 1–3

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试卷: MR 材料与资源[查看]
MR Credit 1.1: Building Reuse—Maintain Existing Walls, Floors and Roof
1–3 Points

Intent
To extend the lifecycle of existing building stock, conserve resources, retain cultural resources, reduce waste and
reduce environmental impacts of new buildings as they relate to materials manufacturing and transport.

Requirements
Maintain the existing building structure (including structural floor and roof decking) and envelope (the exterior skin
and framing, excluding window assemblies and non-structural roofing material). The minimum percentage building
reuse for each point threshold is as follows:
Building Reus Points
55% 1
75% 2
95% 3
Hazardous materials that are remediated as a part of the project must be excluded from the calculation of the
percentage maintained. If the project includes an addition that is more than 2 times the square footage of the existing
building, this credit is not applicable.
Potential Technologies & Strategies
Consider reusing existing, previously-occupied building structures, envelopes and elements. Remove elements that
pose a contamination risk to building occupants and upgrade components that would improve energy and water
efficiency such as windows, mechanical systems and plumbing fixtures.

MR C1.1: 建筑再利用—保留既有墙体、楼板和屋面
1–3分

目的
延长既有建筑使用寿命，节约资源，保持文化资源，减少由于新建筑需求带来的材料生产和运
输所造成的废弃物和环境污染。

要求
保留既有建筑结构(结构楼板和屋面构件)、围护结构(外框和墙面，不含窗户和非结构屋面材
料)，最低的建筑再利用率与得分标准如下：
建筑再利用率；得分
55% 1
75% 2
95% 3
重复使用的有害材料必须从计算中去除，如果工程改造超过既有建筑两倍大，则不适用于该项
目

技术措施和策略
再利用原先使用过的建筑结构、围护结构及部件，去除包含对人体有污染的部分，升级有利于
提高节能、节水的构件，如窗户、机械系统和用水器具。